# Atmel EDBG-based Tools Protocols
TPI protocol commands

### TPI Enter Programming Mode

Enters programming mode to start TPI programming

Table 161. TPI Enter Programming Mode command format

Field | Size | Description
--- | --- | ---
TPI_CMD_ENTER_PROGMODE | 1 byte | Command ID

Response:

Table 162. TPI Enter Programming Mode response

Field | Size | Description
--- | --- | ---
TPI_CMD_ENTER_PROGMODE | 1 byte | Command ID
Status | 1 byte | TPI_RSP_ERR_FAILED or TPI_RSP_ERR_COLLISION or TPI_RSP_ERR_OK

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